Failed an emissions test? This can be down to dozens of reasons but is largely limited to parts in the car Fuel Delivery System. Causes can be as simple as a leaking gas cap, faulty vapor canisters that trap gas vapors in the fuel return lines to damage to the EGR Valves that recirculate exhaust gasses and reduce nitrogen oxides. Increased emissions can also be down to skipping maintenance intervals with regular replacement parts like vehicle Air Filters to deliver oxygen-rich and cleansed air for better engine efficiency, and Engine Oil Filters to filter out contaminants that cause wear.
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- Walker Left Exhaust Clamp for 2007-2015 Nissan Armada 5.6L V8Special Price $3.71 Regular Price $4.99
- Walker Left Exhaust Clamp for 1988-1991 GMC R3500 6.2L V8Special Price $4.25 Regular Price $5.99
- Walker Left Exhaust Clamp for 1978-1986 Chevrolet C10 5.7L 6.2L V8Special Price $4.49 Regular Price $5.99
- Walker Resonator Assm Exhaust System Insulator for 2006-2011 Honda Civic 1.3L 1.8L L4Special Price $4.99 Regular Price $6.99
- Walker Resonator Assm Exhaust System Insulator for 2007-2009 Saturn Aura 3.5L 3.6L V6Special Price $5.26 Regular Price $7.99
- Walker Resonator Assm Exhaust System Insulator for 2004-2013 Toyota Highlander 2.4L 3.3L 3.5L L4 V6Special Price $5.26 Regular Price $7.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2000-2003 GMC Yukon XL 1500 5.3L V8Special Price $6.01 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2006-2009 Chevrolet Trailblazer 5.3L V8Special Price $6.01 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2000-2003 Chevrolet Suburban 1500 5.3L V8Special Price $6.01 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 1999-2009 GMC Sierra 1500 4.3L 4.8L 5.3L V6 V8Special Price $6.30 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2005 GMC Envoy XUV 5.3L V8Special Price $6.30 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 1999-2003 GMC Savana 1500 4.3L 5.3L V6 V8Special Price $6.30 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2005-2009 Saab 9-7x 5.3L V8Special Price $6.30 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2010 Hummer H3T 5.3L V8Special Price $6.41 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2015-2016 GMC Yukon XL 5.3L 6.2L V8Special Price $6.41 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004-2006 Chevrolet Avalanche 1500 5.3L V8Special Price $6.41 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2007-2019 GMC Sierra 2500 HD 6.0L V8Special Price $6.41 Regular Price $8.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2007-2019 GMC Sierra 3500 HD 6.0L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2004-2014 GMC Yukon XL 1500 5.3L 6.0L 6.2L V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2002-2016 GMC Savana 2500 4.3L 4.8L 5.3L 6.0L V6 V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2002-2014 GMC Savana 1500 4.3L 5.3L V6 V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2002-2016 GMC Sierra 1500 4.3L 4.8L 5.3L 6.0L 6.2L V6 V8Special Price $6.71 Regular Price $9.99
- Fel-Pro Left Exhaust Pipe Flange Gasket for 2007-2013 GMC Yukon XL 2500 6.0L V8Special Price $6.71 Regular Price $9.99
- Walker Resonator Assm Exhaust System Insulator for 1996-2007 Chrysler Town & Country 3.3L 3.8L V6Special Price $7.76 Regular Price $10.99
- Walker Resonator Assm Exhaust System Insulator for 2002-2004 Infiniti I35 3.5L V6Special Price $7.76 Regular Price $10.99
- Walker Resonator Assm Exhaust System Insulator for 2007-2009 Mitsubishi Raider 3.7L 4.7L V6 V8Special Price $8.09 Regular Price $11.99
- Walker Resonator Assm Exhaust System Insulator for 2011-2013 Kia Sorento 2.4L L4Special Price $9.51 Regular Price $13.99
- 2 pc Walker Resonator Assm Exhaust System Insulators for 2004-2006 Lexus ES330 3.3L V6Special Price $10.91 Regular Price $15.99
- 2 pc Walker Resonator Assm Exhaust System Insulators for 2007 Pontiac G6 3.5L V6Special Price $10.91 Regular Price $15.99
- 2 pc Walker Resonator Assm Exhaust System Insulators for 2001-2008 Mazda Tribute 2.0L 2.3L 3.0L L4 V6Special Price $11.30 Regular Price $15.99
- 2 pc Walker Resonator Assm Exhaust System Insulators for 2004-2010 Toyota Sienna 3.3L 3.5L V6Special Price $11.30 Regular Price $15.99
- 2 pc Walker Resonator Assm Exhaust System Insulators for 2006-2008 Lexus RX400h 3.3L V6Special Price $11.30 Regular Price $15.99
- 2 pc Walker Resonator Assm Exhaust System Insulators for 2003-2008 Pontiac Vibe 1.8L L4Special Price $11.30 Regular Price $15.99
- 2 pc Walker Resonator Assm Exhaust System Insulators for 2007-2012 Nissan Versa 1.6L 1.8L L4Special Price $11.30 Regular Price $15.99
- 2 pc Walker Resonator Assm Exhaust System Insulators for 2007-2010 Cadillac Escalade 6.2L V8Special Price $20.51 Regular Price $28.99